A New Experiment Finds Just A 1.3°C Temperature Differential For Contained Air With 0.05% Versus 100% CO2
By Kenneth Richard on 3. December 2020
A new balloon experiment (inadvertently) demonstrates just how weak and inconsequential CO2’s warming effect is.
Levendis et al. (2020) tried using an experiment with air-filled (99% nitrogen and oxygen) versus CO2-filled (100% CO2) balloons to demonstrate a consequential warming effect for CO2. But their study may have demonstrated the opposite.
In the experiment a heat source was applied and then removed (shut off) to 3 different-sized balloons with 100% (1,000,000 ppm) CO2 in them. They compared the rate of cooling for these CO2-filled balloons to the cooling rate for a balloon filled with regular room air that has ~790,000 ppm nitrogen (N2), ~210,000 ppm oxygen (O2), ~9,000 ppm Argon (Ar), and ~500 ppm CO2.
The results revealed the temperature inside the 1,000,000 ppm CO2 balloons cooled just ~1.3°C (0.5 to 2.0°C) more slowly after 6½ minutes than the balloon with ambient air with ~500 ppm CO2. Put another way, raising CO2 concentrations from 500 ppm to 1,000,000 ppm only leads to a warming (reduced cooling) effect of 1.3°C.
https://notrickszone.com/2020/12/03/a-new-experiment-finds-only-a-1-3c-temperature-differential-for-contained-air-with-0-05-versus-100-co2/
